EP4282990A4 - Tuyau en acier inoxydable duplex et son procédé fabrication - Google Patents

Tuyau en acier inoxydable duplex et son procédé fabrication

Info

Publication number
EP4282990A4
EP4282990A4 EP22770955.7A EP22770955A EP4282990A4 EP 4282990 A4 EP4282990 A4 EP 4282990A4 EP 22770955 A EP22770955 A EP 22770955A EP 4282990 A4 EP4282990 A4 EP 4282990A4
Authority
EP
European Patent Office
Prior art keywords
producing
same
stainless steel
steel pipe
duplex stainless
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22770955.7A
Other languages
German (de)
English (en)
Other versions
EP4282990A1 (fr
Inventor
Shunsuke Sasaki
Seigo Goto
Masao Yuga
Tatsuro Katsumura
Hideo Kijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP4282990A1 publication Critical patent/EP4282990A1/fr
Publication of EP4282990A4 publication Critical patent/EP4282990A4/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Extraction Processes (AREA)
  • Laminated Bodies (AREA)
EP22770955.7A 2021-03-17 2022-02-09 Tuyau en acier inoxydable duplex et son procédé fabrication Pending EP4282990A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021043498 2021-03-17
PCT/JP2022/005176 WO2022196196A1 (fr) 2021-03-17 2022-02-09 Tuyau en acier inoxydable duplex et son procédé fabrication

Publications (2)

Publication Number Publication Date
EP4282990A1 EP4282990A1 (fr) 2023-11-29
EP4282990A4 true EP4282990A4 (fr) 2025-07-23

Family

ID=83322225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22770955.7A Pending EP4282990A4 (fr) 2021-03-17 2022-02-09 Tuyau en acier inoxydable duplex et son procédé fabrication

Country Status (10)

Country Link
US (1) US20240309480A1 (fr)
EP (1) EP4282990A4 (fr)
JP (1) JP7173411B1 (fr)
CN (1) CN116917523B (fr)
AR (1) AR125543A1 (fr)
AU (1) AU2022240057B2 (fr)
BR (1) BR112023017868A2 (fr)
MX (1) MX2023010534A (fr)
SA (1) SA523450566B1 (fr)
WO (1) WO2022196196A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7636704B2 (ja) * 2023-03-10 2025-02-27 日本製鉄株式会社 ホットスタンプ成形体
WO2024195730A1 (fr) * 2023-03-17 2024-09-26 日本製鉄株式会社 Tuyau en acier inoxydable duplex
JP7553883B1 (ja) * 2023-03-17 2024-09-19 日本製鉄株式会社 二相ステンレス鋼管
WO2024201749A1 (fr) * 2023-03-28 2024-10-03 日本製鉄株式会社 TUBE EN ALLIAGE Cr-Ni
JP7816551B2 (ja) * 2023-07-18 2026-02-18 Ｊｆｅスチール株式会社 二相ステンレス鋼およびステンレス継目無鋼管
CN119640161A (zh) * 2025-02-13 2025-03-18 湖南旺坤管业有限公司 一种用于生产低碳高钼不锈钢管道的材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467132A1 (fr) * 2016-06-01 2019-04-10 Nippon Steel & Sumitomo Metal Corporation Acier inoxydable duplex et procédé de fabrication d'acier inoxydable duplex
CA3108758A1 (fr) * 2018-08-31 2020-03-05 Jfe Steel Corporation Tuyau sans soudure en acier duplex et methode de fabrication
WO2020110597A1 (fr) * 2018-11-30 2020-06-04 Ｊｆｅスチール株式会社 Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194213A (en) 1981-05-25 1982-11-29 Nippon Kokan Kk <Nkk> Production of abrasion resistant steel pipe
JPS63290616A (ja) 1987-05-22 1988-11-28 Sumitomo Metal Ind Ltd 耐摩耗腐蝕性に優れたクラッド鋼管
JPS6415323A (en) 1987-07-08 1989-01-19 Kawasaki Steel Co Production of wear resistant steel pipe
JP3697853B2 (ja) * 1997-09-09 2005-09-21 Ｊｆｅスチール株式会社 耐食性に優れるステンレス熱延鋼板およびその製造方法
JP2996245B2 (ja) * 1998-02-23 1999-12-27 住友金属工業株式会社 酸化スケ―ル層付きマルテンサイト系ステンレス鋼材およびその製造方法
JP4462454B1 (ja) * 2009-01-19 2010-05-12 住友金属工業株式会社 二相ステンレス鋼管の製造方法
WO2012004464A1 (fr) * 2010-07-07 2012-01-12 Arcelormittal Investigación Y Desarrollo Sl Acier inoxydable austéno-ferritique à usinabilité améliorée
JP6341125B2 (ja) * 2015-03-17 2018-06-13 Ｊｆｅスチール株式会社 ２相ステンレス継目無鋼管の製造方法
CN106011689B (zh) * 2015-03-30 2019-05-03 新日铁住金不锈钢株式会社 含臭氧水用双相不锈钢
JP6805574B2 (ja) * 2015-07-10 2020-12-23 日本製鉄株式会社 オーステナイト系耐熱鋼及びオーステナイト系伝熱部材
CA3028947A1 (fr) * 2016-06-29 2018-01-04 Nippon Steel & Sumitomo Metal Corporation Acier ferritique resistant a la chaleur et element de transfert thermique ferritique
CN109642282B (zh) * 2016-09-02 2021-10-01 杰富意钢铁株式会社 双相不锈钢及其制造方法
JP6946737B2 (ja) * 2017-05-18 2021-10-06 日本製鉄株式会社 二相ステンレス鋼材及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467132A1 (fr) * 2016-06-01 2019-04-10 Nippon Steel & Sumitomo Metal Corporation Acier inoxydable duplex et procédé de fabrication d'acier inoxydable duplex
CA3108758A1 (fr) * 2018-08-31 2020-03-05 Jfe Steel Corporation Tuyau sans soudure en acier duplex et methode de fabrication
WO2020110597A1 (fr) * 2018-11-30 2020-06-04 Ｊｆｅスチール株式会社 Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication
EP3854890A1 (fr) * 2018-11-30 2021-07-28 JFE Steel Corporation Tuyau en acier inoxydable duplex sans soudure et procédé pour sa fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022196196A1 *

Also Published As

Publication number Publication date
US20240309480A1 (en) 2024-09-19
MX2023010534A (es) 2023-09-19
CA3208799A1 (fr) 2022-09-22
CN116917523B (zh) 2025-08-29
AU2022240057A1 (en) 2023-08-17
EP4282990A1 (fr) 2023-11-29
SA523450566B1 (ar) 2025-06-11
JPWO2022196196A1 (fr) 2022-09-22
JP7173411B1 (ja) 2022-11-16
AR125543A1 (es) 2023-07-26
CN116917523A (zh) 2023-10-20
BR112023017868A2 (pt) 2023-10-10
AU2022240057B2 (en) 2024-11-14
WO2022196196A1 (fr) 2022-09-22

Similar Documents

Publication Publication Date Title
EP4282990A4 (fr) Tuyau en acier inoxydable duplex et son procédé fabrication
EP3744499C0 (fr) Tuyau flexible non métallique et méthode de fabrication de celui-ci
DE102018102542A8 (de) Vorrichtung zur Handhabung von Fluiden sowie Verfahren zur Herstellung derselben
EP4350016A4 (fr) Tôle d&#39;acier, élément, et procédés de fabrication de ceux-ci
EP4382634A4 (fr) Tôle d&#39;acier et son procédé de fabrication
EP4269631A4 (fr) Tôle d&#39;acier, et procédé de fabrication de celle-ci
EP3954790A4 (fr) Tôle d&#39;acier et son procédé de fabrication
EP3929315A4 (fr) Tôle d&#39;acier laminée à chaud et son procédé de fabrication
EP3960885C0 (fr) Tuyau en acier sans soudure en acier inoxydable duplex et procédé pour produire un tuyau en acier sans soudure en acier inoxydable duplex
EP4365331A4 (fr) Élément estampé à chaud et son procédé de fabrication
EP4279618A4 (fr) Matériau en acier inoxydable à base de martensite et son procédé de production
EP4386098A4 (fr) Tôle d&#39;acier à haute résistance, tôle d&#39;acier plaquée à haute résistance, procédés de production de celles-ci et élément
EP4394055A4 (fr) Acier inoxydable ferritique et son procédé de production
EP3666917A4 (fr) Tôle en acier inoxydable à base de ferrite, et procédé de fabrication de celle-ci
EP4299781A4 (fr) Tôle d&#39;acier et son procédé de fabrication
EP4137593A4 (fr) Tôle en acier, élément, et procédés de fabrication de ceux-ci
EP4484590A4 (fr) Tôle d&#39;acier galvanisée et son procédé de production
EP3901312C0 (fr) Feuille d&#39;acier laminée à chaud à haute résistance présentant une excellente aptitude au façonnage, et son procédé de fabrication
EP4368738A4 (fr) Feuille d&#39;acier, élément, procédé de production de ladite feuille d&#39;acier et procédé de production dudit élément
EP4319975C0 (fr) Panneau et son procédé de fabrication
EP3915693C0 (fr) Système de collecte et procédé de production de ce système de collecte
EP4269691A4 (fr) Article façonné moulé en pâte fibreuse et son procédé de fabrication
EP4282523A4 (fr) Catalyseur de dénitration et son procédé de production
EP4134461A4 (fr) Acier inoxydable ferritique et procédé de fabrication d&#39;acier inoxydable ferritique
EP4146958A4 (fr) Carter de boîte de vitesses et son procédé de fabrication

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230821

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C21D0007100000

Ipc: C21D0001260000

A4 Supplementary search report drawn up and despatched

Effective date: 20250624

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/26 20060101AFI20250617BHEP

Ipc: C21D 7/10 20060101ALI20250617BHEP

Ipc: C21D 8/10 20060101ALI20250617BHEP

Ipc: C21D 9/08 20060101ALI20250617BHEP

Ipc: C22C 38/00 20060101ALI20250617BHEP

Ipc: C22C 38/02 20060101ALI20250617BHEP

Ipc: C22C 38/04 20060101ALI20250617BHEP

Ipc: C22C 38/06 20060101ALI20250617BHEP

Ipc: C22C 38/42 20060101ALI20250617BHEP

Ipc: C22C 38/44 20060101ALI20250617BHEP

Ipc: C22C 38/48 20060101ALI20250617BHEP

Ipc: C22C 38/50 20060101ALI20250617BHEP

Ipc: C22C 38/54 20060101ALI20250617BHEP

Ipc: C22C 38/58 20060101ALI20250617BHEP

Ipc: C22C 38/60 20060101ALI20250617BHEP